How to debug Xorg problems

From FedoraProject

If you are experiencing a problem with Xorg, please see the Fedora 11 common bugs document before filing a bug. Some easy configuration tweaks that fix a wide range of issues are listed there. If the problem you are seeing is not listed there or none of the workarounds seem to help, please consider filing a bug to help us make Fedora run better on your hardware. Be prepared to include some information (logs) about your system as well.